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A two-component acrylic structural adhesive for bonding electrophoretic coating materials

An acrylate, electrophoretic coating technology, applied in the direction of adhesive, epoxy resin glue, adhesive type, etc., can solve the problem of inability to meet the requirements of bonding strength and process, unsatisfactory bonding effect of electrophoretic coating, electrophoretic coating problems such as low surface energy characteristics of the coating, to achieve the effect of good room temperature storage stability, improved curing speed and adhesion, high peel strength and shear strength

Active Publication Date: 2017-01-04
TONSAN ADHESIVES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] During the electrophoresis process, on the one hand, due to the directional arrangement of the polymer resin, it has a high degree of regularity, forming a smooth surface, similar to the characteristics of crystalline materials; on the other hand, due to the high temperature curing process, the polymer material is further cross-linked to form a high hardness Dense chemical structure, resulting in low surface energy characteristics of electrophoretic coatings, making it difficult to achieve effective adhesion
[0006] The two-component acrylic structural adhesives on the market have unsatisfactory bonding effects on electrophoretic coatings, mainly reflected in the shortcomings of low bonding strength, long curing time, poor peeling force, and no residual glue on the interface after the bonding surface is damaged. Unable to meet the actual bonding strength and process requirements

Method used

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  • A two-component acrylic structural adhesive for bonding electrophoretic coating materials
  • A two-component acrylic structural adhesive for bonding electrophoretic coating materials
  • A two-component acrylic structural adhesive for bonding electrophoretic coating materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] An acrylic structural adhesive, including component A and component B, in parts by mass, the components are as follows:

[0032] A component raw material number of copies Methyl methacrylate 45.95 Phenoxyethyl methacrylate 6 epoxy acrylate 10 maleic acid 8 liquid butadiene rubber 10 SIS resin 13

[0033] Polyethylene powder 5 2,6-di-tert-butyl-4-methylphenol 0.05 N,N-Dimethyl-p-toluidine 1 paraffin 1

[0034] B component raw material number of copies Benzoyl peroxide 30 Bisphenol A epoxy resin 40 Dioctyl sebacate 27 fumed silica 2 iron blue 1

[0035] Preparation Process:

[0036] Preparation of component A: Accurately weigh methyl methacrylate, phenoxyethyl methacrylate, maleic acid, and epoxy acrylate and mix evenly; then mix SIS rubber, liquid butadiene rubber, and polyethylene powder in sequence Add to dissolve and disperse completely; ...

Embodiment 2

[0040] An acrylic structural adhesive, including component A and component B, in parts by mass, the components are as follows:

[0041] A component raw material share Methyl methacrylate 42 Methacrylate 8 Ethylene glycol dimethacrylate 7

[0042] urethane acrylate 8 Nitrile rubber 10 liquid butadiene rubber 2 Benzyldimethylamine 2 PTFE powder 9.95 p-benzoquinone 0.05 paraffin 1

[0043] B component raw material share Benzoyl peroxide 30 Bisphenol F epoxy resin 30 Dioctyl adipate 36 fumed silica 3 iron blue 1

[0044] Preparation Process:

[0045] Preparation of component A: Accurately weigh methyl methacrylate, methacrylic acid, ethylene glycol dimethacrylate, and urethane acrylate, and mix them evenly; then mix nitrile rubber, liquid butadiene rubber, and polytetrafluoroethylene Add the powder one by one to make it dissolve completely; add p-benz...

Embodiment 3

[0049] An acrylic structural adhesive, including component A and component B, in parts by mass, the components are as follows:

[0050] A component raw material share Methyl methacrylate 43

[0051] Methacrylate 7 Phosphate 1 Phenoxyethyl methacrylate 7 urethane acrylate 8 SBS 10 liquid butadiene rubber 12 N,N-Dimethyl-p-toluidine 1 PTFE powder 9.95 p-benzoquinone 0.05 paraffin 1

[0052] B component raw material share Benzoyl peroxide 30 Bisphenol F epoxy resin 18 Dibutyl phthalate 36 polyethylene wax 15 iron blue 1

[0053] Preparation Process:

[0054] Preparation of component A: Accurately weigh methyl methacrylate, methacrylic acid, phenoxyethyl methacrylate, phosphoric acid ester, and polyurethane acrylate, and mix well; then mix SBS, liquid butadiene rubber, and polytetrafluoroethylene Add vinyl fluoride powder one by one to make it d...

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Abstract

The invention discloses a two-component acrylic structural adhesive used for bonding electrophoretic coating materials and a preparation method thereof, belonging to the technical field of adhesives. The structural adhesive is made by mixing component A and component B according to the volume ratio of 10: (0.1-2), component A includes acrylate monomer, acrylic resin, strong acid monomer, non-polar rubber , flexible resin, non-polar organic particles, accelerators, stabilizers and paraffin, B components include initiators, plasticizers, thickeners and pigments. The structural adhesive of the present invention can achieve effective bonding and rapid curing of electrophoretic coatings, high peel strength and shear strength, the failure form of the adhesive surface is cohesive failure of the adhesive layer, convenient sizing, and good storage stability at room temperature Features.

Description

technical field [0001] The invention belongs to the technical field of adhesives, and in particular relates to a two-component acrylic structural adhesive used for bonding electrophoretic coating materials and a preparation method thereof. Background technique [0002] The second-generation acrylate adhesive is mainly composed of acrylate monomer, resin, rubber, initiator, accelerator and stabilizer. The initiator and accelerator are divided into two components, which can effectively improve storage stability. Acrylic structural adhesives can be used for bonding most metals and plastics, and the bonding effect is excellent. It has many advantages such as fast curing speed, high bonding strength, and easy operation. It can replace traditional welding, riveting, screwing and other processes. Has been widely used in aviation, machinery, electronics, construction, instrumentation, furniture and other industries. [0003] The metal shell of electronic products is generally made ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J163/00C09J153/02C09J163/10C09J109/00C09J175/14C09J109/02C09J127/18C09J111/00C09J123/34C09J11/06C09J11/04
Inventor 李守平李建华何广洲白晗史伟同
Owner TONSAN ADHESIVES INC
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